Washington (CNN) - Some new fundraising figures bolster the notion that this year's battle in Virginia for an open Senate seat could be one of the most expensive Senate races this cycle.

Former Virginia Gov. Tim Kaine's Senate campaign announced Tuesday that they raised more than $2.2 million in the past three months, and that they have $4.4 million cash on hand. The first quarter haul is a jump from the $1.65 million the former chairman of the Democratic National Committee raised in the fourth quarter of last year.FULL POST

(CNN) – As the U.S. Senate race in Virginia heats up, a new super PAC supportive of Democrat Tim Kaine went public this week, just days after the launch of a super PAC dedicated to help Republican George Allen.

The pro-Kaine group, A New Virginia PAC, aims to raise $2-$3 million to aid the former Democratic National Committee chairman and former Virginia governor.FULL POST

(CNN) - Following the creation of a new super PAC supporting Republican George Allen's Senate bid in Virginia, Democratic opponent Tim Kaine sent a letter to Allen Tuesday urging that anyone or any group spending money on the race do so openly.

"Virginia voters are entitled to know who is funding this campaign," the letter stated. "Contributions directly to either of us are already disclosed. But, the third parties filling the airways get to hide behind a cloak of secrecy."FULL POST

The former governor finished the year with $4.5 million in fundraising and more than $2 million cash on hand. Well ahead of the state's party primaries in June, Allen is locked in a heated battle against the Democratic front-runner Tim Kaine, who's also a former governor.FULL POST

Washington (CNN) - Virginia's top Republican is backing former Sen. George Allen's bid to reclaim his old job in Congress.

Virginia Gov. Bob McDonnell Friday endorsed Allen's campaign for the Senate, saying in a web video and in an email release that "George Allen will need all of our help. He has my support and I'm hoping he can count on yours as well."FULL POST

(CNN) - Crossroads GPS isn't wasting time in its ad offensive against Democrats. The conservative advocacy group released ads in five states one day after announcing it would spend $2.6 million on a campaign bashing the incumbent president.

The new round of ads will run for two weeks in Massachusetts, Missouri, Montana, Virginia, and Nebraska - sites of critical Senate contests in 2012.FULL POST

Washington (CNN) – Tim Kaine is the first to show his money in what could be one of the most expensive Senate battles of 2012.

The former Virginia governor and former Democratic National Committee Chairman's campaign will announce Tuesday that it has raised $2.25 million since forming on April 5, with more than 4,600 supporters making contributions.FULL POST

Washington (CNN) – Tim Kaine, the former chairman of the Democratic National Committee, called on New York Rep. Anthony Weiner to resign after he admitted to sending racy pictures of himself to women over the internet.

Kaine is the first prominent Democrat to publicly demand Weiner's resignation.FULL POST